Temperature sensors 209

Temperature sensors 209 group 2 are designed to measure the surface temperature of solids in various industries. They have small dimensions, improved thermal inertia, do not require complex assembly work when installed on site.

Temperature is the most common measured parameter, and overheating is one of the most negative factors in the operation of equipment, therefore, there are a huge number of ways and places of using temperature sensors.

The principle of operation of resistance thermocouples is based on a change in the electrical resistance of conductors and semiconductors depending on temperature. The material from which such a sensor is made should have a high temperature coefficient of resistance, possibly a linear dependence of resistance on temperature, good reproducibility of properties and inertness to environmental influences. To the greatest extent, platinum satisfies all of the above properties; slightly less copper.

Thermocouple Are exclusively differential temperature sensors. They generate an electrical signal proportional to the temperature difference between two different points. Therefore, the junction (junction) that we use to measure the required temperature is called the "hot" junction, while the other junction (from which we can not escape) is called the "cold" junction.

Classification of temperature sensors 209 REGMIK by type of measuring (sensing) element

• resistance thermocouples (thermometers) - TSM, TSP;
• thermoelectric thermocouples (thermocouples) - type K, L, J;
• semiconductor converters - TP.

Main technical characteristics of temperature sensors 209:

• SE connection diagram – two-, three-, four-wire;
• by type of SE are divided into:
  •  resistance thermocouples (RTD, resistance thermometers, thermometers, temperature sensors) (50M, 100M, 50P, 100P, Pt100, Pt500, Pt1000, Pt2000, Pt10000);
  • thermoelectric converters (TP, thermoelectric converters, thermocouples, temperature sensors) (ТХА (К), ТХК (L));
  • semiconductor (DS18B20);
• the design of thermal converters (temperature sensors) - non-separable;
•  insulation resistance - not less than 100 megohms;
• tolerance classes - A, B, C (for vehicle), 1, 2 (for TP).